Conveyor belt is the main component of belt conveyor, mainly used in coal, mining, metallurgy, chemical, construction and transportation departments of large-scale continuous transportation. In terms of microstructure, the conveyor belt is mainly composed of skeleton material, covering layer and backing material, among which the covering layer is the key part to determine its performance and use. According to the different materials used in the covering layer, the conveyor belt industry can be divided into two categories: heavy conveyor belt and light conveyor belt. The former takes rubber (including natural rubber and synthetic rubber) as the main raw material, so it is also called rubber conveyor belt. Its scope of use is concentrated in the field of heavy industry and infrastructure construction.The latter is the main use of polymer materials, mainly used in food, electronics and other light industry.